Operating mechanism for ink-rollers.



S, G. G088.

OPERATING MECHANISM FORINK ROLLERS.

APPLICATION FILED JUNE 16. 1M6.

Rztented May 15, 1917.

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SAMUEL G. GOSS, 0F GLENCOE, ILLINOIS, ASSIGNOR TO THE GOSS PRINTING PRESS GOM- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

OPERATING MECHANISM FOR INK-ROLLERS.

Specification of Letters Patent.

Patented May 15, 1917.

Application filed June 16, 1916. Serial No. 103,944.

To all whom it may concern:

Be it known that I, SAMUEL G. Goss, a citizen of the United States, and a resident of Glencoe, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Operating Mechanisms for Ink-Rollers, of which the following is a specification, reference being had to the accompanying drawing.

My invention relates to operating mechanisms for ink rollers and has for its principal object the provision of a differentiallyinking mechanism whereby the amount of ink delivered to the inking cylinder is greater relative to the speed of the press when the press is being driven at low speed or is being brought up to its high speed operation than when the press is driven at its normal high speed. To this end it is one of the objects of my invention to provide for driving the fountain roller differentially. It is another object of my invention to improve mechanisms of this type in sundry details hereinafter pointed out. The preferred means by which I have accomplished my several objects are illustrated in the drawings and are hereinafter specifically described. That which I believe to be new and desire to cover by this application is set forth in the claims.

In the drawings:

Figure 1 is a fragmentary view showing a part of a printing press embodying one form of my improved roller driving mechanism;

Fig. 2 is a vertical section through my improved device, being substantially a section taken on line 2-2 of Fig. 1;

Fig. 3 is a fragmentary view similar to Fig. 1, but showing a modified form of roller driving mechanism; and

Fig. 4 is a view of the mechanism at the end of the inking cylinder in Fig. 3 as seen from the right in said figure.

Referring to Figs. 1 and 2 in which corresponding parts are indicated by the same reference characters,

10 indicates the framework of a press having an inking cylinder 11 revolubly mounted thereon. An oscillating roller 12 is actuated by any suitable means not shown for transferring ink from a fountain-roller 13 to the inking cylinder 11, the inking roller 13 being adapted to take ink from the fountain 14 by rotation therein upon its shaft 13 as is readily understood.

The fountainroller 13 is normally driven by a pawl 15 mounted upon a pivotally mounted arm 16 andadapted to engage a ratchet wheel 17 fixed upon the shaft 13" of the fountain-roller 13. The arm 16 is os cillated, in the construction shown, by means of a link 18 connecting the lower end of the arm with a disk 19 eccentrically thereof, the disk 19 being adapted to be driven in timed relation to the speed of the press by means of a shaft 20 driven from any suitable portion of the press.

Revoluhly mounted upon the shaft 13 of the fountain-roller 13 is a shroud-plate 21 provided with an arm 22 extending laterally therefrom. The arm 22 is connected by means of a link 23 to a governor 24. of any suitable type which is adapted to be rotated by a shaft 25 preferably driven in timed relation to the speed of the press. The form of governor shown comprises a head 26 slidably mounted upon the upper end of the shaft 25, the head 26 being connected to the link 23 so as to revolve thereabout but so as to be held against movement longitudinally thereof. The head 26 is connected with the shaft 25 through the medium of weighted links 27 which are adapted to move outward against the action of a spring 28 under the actuation of the centrifugal force developed by the weighted links 27.

With the shafts 20 and 25 being driven at slow speed in timed relation to the low speed driving of the press, the shroud 21 will be turned substantially to the limit of its movement in counterclockwise direction in Fig. 1, in which position the shroud has little or no effect upon the action of the pawl 15. As the shafts 20 and 25 are speeded up, however, whenthe press is attaining its full-speed driving, the weighted links 27 are forced outward by centrifugal force against the action of the spring 28, drawing the head 26 downward and turning the shroud 21 in clockwise direction in Fig. 1. The shroud 21 in such turned position serves to render the pawl 15 ineffective for a portion of its Stroke, thus serving upon an increase in the speed of the press to decrease the relative speed of the fountain-roller 13.

Referring now to Figs. 3 and i which show the modified form of roller driving mechanism, 29 indicates a worm-gear fixed upon the shaft 13 of the fountain-roller 18. Meshing with the v' O-rm-gear 29 is a worm 30 mounted upon a shaft 31 provided with a ratchet-wheel 32. Revolubly mounted upon the shaft 31 are two arms 33-34 provided with pawls 3536, respectively, adapted to act simultaneously upon the ratchet-wheel 32. The arms 3334l are connected by means of links 37-3S with a driving wheel 8'9 fixed upona shaft 40' which is driven preferably in timed relation to the speed of the press by any suitable means. The links 3"(38 are connected to the driving wheel 3'9 by means of a bellcrank lever, &1 one arm of which bears a weight 42. A spring tends to hold the weight moved to the limit of its motion toward the shaft 40. When the shaft l0 is driven at a slow speed corresponding to the slow speed operation of the press, the weight 42 will be held by the spring at? substantially in the position shown in Fig. 4; whereby the lower ends of the links 37 38 are held in their outermost position relative to the shaft When the shaft 4t), however, is being brought to its high speed rate of rotation, the weighted arm d2 of the bell-crank lever is forced by centrifugal force away from the shaft 40 against the action of the spring l?) bringing 1 the lower ends of the links Si -38 closer to the shaft 40.

As will be readily understood, when the links are moved closer to the shaft a0 and maintained in such position, the ext'ent of movement of the arms 33-34: is correspondingly decreased as actuated through the medium of the links, in this way serving to diminish the driving effect of the p'awls upon the ratchet-wheel 32 and consequently upon the fountain-roller 13.

By the use of my invention, by which a differential driving of the inking mechanism is secured, a comparatively great amount of ink is fed during the low speed rotation of the press preparatory to an operative run of the press. The inking mechanism is accordingly brought very quickly to a completely inked up condition, by reason of which it is unnecessary to run the press for any considerable time for obtaining a properly inked product. The resultis that there is a very considerable saving in paper, inasmuch as a poorly inked product is not available for use; While the mechanism as shown provides for an increased speed of operating the inking mechanism during the operation of starting the press and bringing it to its high speed operation, my improved mechanism also is capable of differentiating as is required in case the press is for any reason driven at one time in operation more rapidly than at another, serving to deliver an increased amount of ink in proportion to the requirements rather than in proportion to the increase in the speed of driving the press.

What I claim as my invention and desire to secure by Letters Patent, is

1. In a printing press, the combination of an inking mechanism, and means for driving said inking mechanism, comprising means serving upon an increase in the speed of the press to decrease the speed of the inking mechanism relative to that of the press.

2. In a printing press, the combination of an inking mechanism, and means driven in timed relation to the speed of the press adapted to drive said inking mechanism at a differential speed, serving upon an increase in the speed of the press to decrease the speed of the inking mechanism relative to that of the press.

In a printing press, the combination of an inking mechanism, and means for driving said inking mechanism in timed relation to the speed of the press, adapted when the press is being driven at its low speed and when the press is being brought up to its high speed to drive the inking mechanism at a comparatively higher speed relative to that of the press than when the press has attained its normal high speed rotation.

I i. In a printing press, the combination of an inking mechanism, and means for driving said inking mechanism in timed relation to the speed of the press, comprising a governor driven in timed relation to the speed of the press adapted upon an increase in the speed of the press to decrease the speed of the inking mechanism relative to that of the press. I

5. In a printing press, the combination of an ink-fountain, a fountain-roller revolubly mounted in said fountain, and means for rotating said fountain roller, comprising means serving upon an increase in the speed of the press to decrease the speed of rotation of the fountain-roller relative to that of the press.

6. In a printing press, the combination of an ink-fountain, a fountain-roller revoluble in said fountain, means driven in timed relation to the speed of the press for rotating said fountain roller, and means serving upon an increase in the speed of the press to cause said driving means to rotate said fountain-roller at a comparatively slower speed relative to that of the press.

7. In a printing press, the combination of an ink-fountain, a fountain-roller revoluble in said fountain, a ratchet wheel revoluble with said fountain-roller, a pawl engaging said ratchet-"wheel, means for reciprocating said pawl in timed relation to the speed of the press, and means controlled by the speed of the press for limiting the engagement 0 the pawl with the ratchet-wheel adapted upon an increase in the speed of the press to decrease the speed of the fountain roller relative to that of the press.

8. In a printing press, the combination of an ink-fountain, a fountain-roller revoluble in said fountain, a ratchet-wheel revoluble with said fountain-roller, a pawl engaging said ratchet-wheel, means for reciprocating said pawl in timed relation to the speed of the press, a shroud adapted to be moved for limiting the engagement of the pawl with the ratchet-wheel, and means controlled by the speed of the press for controlling the position of the shroud whereby upon an increase in the speed of the press the speed of the fountain-roller is decreased relative to that of the press.

9. In a printing press, the combination of an ink-fountain, a fountain-roller revoluble in said fountain, a ratchet-wheel revoluble with said fountain-roller, a pawl engaging said ratchet-wheel, means for reciprocating said pawl in timed relation to the speed of the press, a shroud adapted to be moved for limiting the engagement of the pawl with the ratchet-wheel, a governor driven in timed relation to the speed of the press, and connections between said shroud and said governor whereby said governor is adapted upon an increase in the speed of the press to move said shroud for decreasing the eifective stroke of said pawl relative to said ratchetwheel for correspondingly decreasing the rotation of the fountain-roller relative to the speed of the press.

10. In a printing press, the combination of an inking mechanism, and means for driving said inking mechanism in timed relation to the speed of the press, comprising a governor driven in timed relation to the speed of the press adapted when the press is being driven at its low speed and when the press is being brought up to its high speed to drive the inking mechanism at a comparatively high speed for bringing the inking mechanism quickly to effective operation and adapted when the press has attained its normal high speed rotation to drive the inking mechanism at a comparatively slower speed.

11. In a printing press, the combination of an inking device, a variable speed mechanism for driving said inking device, and means controlled by the speed of the press for controlling the speed of driving through said variable speed mechanism.

12. In an inking mechanism for printing presses, the combination of an inking device, and means for driving said inking device, comprising means serving upon a variation in the speed of the press to dilierentially vary the speed of the inking device relative to that of the press.

13. In an inking mechanism for printing presses, the combination of an inking device, means driven in timed relation to the speed of the press for operating said inking device,

and means serving upon a variation in the speed of the press to cause said driving means to operate said inking device difi'erentially relative to the speed of the press.

SAMUEL G. GOSS.

Copies of this patent may be'obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

